body{
    margin: 0;
    padding: 0;
}
.main {
    width: 450px;
    margin: 10px auto;
}

#menu {
    height: 40px;
    line-height: 40px;
    background-color: #393D49;
    border-radius: 5px 5px 0 0;
    border-bottom: 1px solid #b7b7b7;
}

#menu span {
    float: right;
    color: #fff;
    margin: 0 10px;
    cursor: pointer;
}

#search {
    border: 2px solid #4b505f;
    height: 42px;
    line-height: 42px;
    position: relative;
    z-index: 9999;
    background-color: #4b505f;
    display: none;
}

#search span {
    margin: 0 5px;
}

#search span input {
    border: 1px solid #4b505f;
    background-color: #fff;
    border-radius: 5px;
    padding-left: 5px;
    height: 28px;
    width: 150px;
    color: #00A5BB;
    font-weight: bold;
    outline: none;
}

#search span button {
    border: 1px solid #4b505f;
    background-color: #00A5BB;
    border-radius: 5px;
    height: 32px;
    width: 80px;
    color: #fff;
    outline: none;
}

#echart1 {
    height: 400px;
    width: 100%;
    background-color: #393D49;
    border-radius: 0 0 5px 5px;
    position: relative;
}